Julien Riposo, Ph.D, CQF

CEO

Lille, Hauts-de-France, France13 yrs 6 mos experience
Most Likely To SwitchHighly Stable

Key Highlights

  • Published in top academic journals like Nature and Springer.
  • Awarded prestigious prizes in quantitative finance and mathematics.
  • CEO and Founder of a mathematical service provider.
Stackforce AI infers this person is a Fintech expert specializing in quantitative research and blockchain technologies.

Contact

Skills

Core Skills

Quantitative ResearchArtificial Intelligence (ai)MathematicsProgrammingBoard GovernanceStatistical ModelingFinancial Analysis

Other Skills

Quantitative FinanceNatural Language Processing (NLP)Machine LearningWritingBoard LevelBoard level experienceDirectorshipBoard AdministrationCommunicationDue DiligenceR (Programming Language)IndexingWorkload PrioritizationLeadershipStrategic Partnerships

About

My extensive research features in prominent academic publications such as Nature or Springer, where I recently published « Some Fundamentals of Mathematics of Blockchain ». My interests lie primarily in the intersection of machine learning, artificial intelligence, and mathematics (with a strong interest in the world of blockchain). In addition, I was awarded the Louise Arconati Visconti prize from the Chancellerie des Universités de Paris (2011) as well as the Wilmott Award from the Wilmott Institute (2019) when completing my Certificate in Quantitative Finance. I also am the author of a philosophical essay. I hold a Masters degree in Theoretical Physics from École Normale Supérieure (France), as well as a PhD in Applied Mathematics from Pierre and Marie Curie University (France). I held senior analytical positions at the likes of Fintegral, NetOTC, ICE, ISDA, Bitstocks, where I was leading the research department as its Chief Research Officer, and London Stock Exchange Group where I was Digital Assets Quantitative Researcher. I am now the CEO and Founder of J.R. Enterprise, a mathematical and quantitative service provider dedicated to delivering tailored solutions across various industries. Additionally, I lead the research department at Stewardship and Governance Associates as its Head of Quantitative Research, where I oversee the development and implementation of advanced quantitative methodologies to analyze governance and stewardship characteristics. Used computational tools (priority): R, Python, LaTeX, SQL, Matlab, Julia Website in construction (in French) www.quelques-reflexions.jimdo.com French Nationality UK Settled (right to live and work in the UK indefinitely)

Experience

13 yrs 6 mos
Total Experience
3 yrs 2 mos
Average Tenure
12 yrs 6 mos
Current Experience

Utopixia

Board Member

Jan 2026Present · 3 mos · Remote

Board LevelBoard GovernanceBoard level experienceDirectorshipBoard Administration

Stewardship and governance associates

Head of Quantitative Research

Jul 2025Present · 9 mos · France · Remote

Quantitative FinanceQuantitative ResearchNatural Language Processing (NLP)Machine LearningArtificial Intelligence (AI)Board Governance

J.r. enterprise

CEO and Founder

Jul 2025Present · 9 mos · Paris, Île-de-France, France · Remote

  • J.R. Enterprise is committed to delivering comprehensive mathematical and quantitative solutions tailored to the varied needs of businesses. While our expertise prominently spans blockchain technologies and quantitative finance, we pride ourselves on our versatility to adapt to any sector our clients operate in. We provide services ranging from deep academic research to computational simulations and proof-of-concept development.
  • Facing a mathematical challenge? J.R. Enterprise is ready to provide precise and data-driven solutions.
MathematicsProgrammingWriting

Lseg (london stock exchange group)

2 roles

Digital Assets Quantitative Research

May 2024Mar 2025 · 10 mos

  • In the digital assets team of LSEG, we develop mathematical models to identify profitable trading opportunities and manage risk within markets that trade digital assets such as cryptocurrencies.
  • Our job involves collecting and analyzing large datasets to extract insights, testing investment strategies through backtesting, and implementing algorithms that can execute trades automatically based on our models.
  • My role requires strong skills mostly in general mathematics, but also in programming (often in languages like Python or R), data analysis, and a deep understanding of financial markets and digital assets.
  • Last but not least, the knowledge of the underlying technology, i.e. the blockchain, is a must and the elaboration of mathematical research papers as well as presenting conferences reflecting the goals and the philosophy of the LSEG’s high standards is one - perhaps the - main objective.
Due DiligenceMathematicsWorkload PrioritizationEthereumLeadershipStrategic Partnerships+16

Quantitative Researcher

Jan 2022Jun 2025 · 3 yrs 5 mos

  • Working in the Index Research & Design team.
Due DiligenceMathematicsR (Programming Language)IndexingWorkload PrioritizationLeadership+17

Bitstocks

3 roles

Chief Research Officer - Exec. Board Member of Bitstocks

Jul 2020Apr 2022 · 1 yr 9 mos

  • Head of Bitstocks Research Division
Due DiligenceWorkload PrioritizationEthereumLeadershipStrategic PartnershipsMicrosoft Excel+11

Chief Research Officer

Promoted

May 2020Jul 2020 · 2 mos

  • Head of Bitstocks Research Division
Due DiligenceWorkload PrioritizationEthereumLeadershipStrategic PartnershipsMicrosoft Excel+11

Quant Trader

Feb 2020May 2020 · 3 mos

  • Quant Trading Desk
Workload PrioritizationEthereumCryptoStatistical ModelingEmerging TechnologiesFinancial Analysis+2

Isda

2 roles

Director - Risk and Capital Analytics - Quant

Dec 2019Feb 2020 · 2 mos

Workload PrioritizationLeadershipMicrosoft ExcelStatistical ModelingSQLEmerging Technologies+6

Associate Director - Risk and Capital Analytics - Quant

Dec 2017Dec 2019 · 2 yrs

  • Collection, organisation, and cleaning (statistical algorithms, detection of outliers, principal component analysis) data from SIMM members;
  • Construction of the whole internal SIMM machine, involving: (i) calibration of the SIMM paramters, (ii) SIMM implementation and unit test verification, (iii) backtesting, and (iv) SIMM monitoring;
  • Participation to the weekly ISDA SIMM Governance Forums;
  • Construction of a data-base; IT management;
  • Softwares: Intensive Python, R, Julia.
Workload PrioritizationMicrosoft ExcelStatistical ModelingSQLEmerging TechnologiesFinancial Analysis+2

Intercontinental exchange

Clearing Risk and Validation - Mathematical Analyst

Aug 2016Dec 2017 · 1 yr 4 mos · City of London

  • Validation of margin, option pricing, extreme value theory, principal component analysis, VaR/SVaR, and collateral models;
  • Independent implementation of all the above models, and independent production of results with improvement leads;
  • Control of regulatory compliance (CCAR, EMIR, CFTC, FRTB), conceptual soundness, model performance (back-testing, stress stesting, sensitivity analysis), and model documentation;
  • Writing technical independent validation documentation for the Risk Committee;
  • Manager of external consultants for independent validation production;
  • Softwares: LaTeX, Python, R.
Workload PrioritizationMicrosoft ExcelStatistical ModelingSQLFinancial AnalysisMarket Risk+1

Netotc

Risk Analytics Data Scientist

Oct 2015Aug 2016 · 10 mos · London, Royaume-Uni

  • Company went to bankrupt by the end of 2016
  • Development of margin models (NetOTC and ISDA SIMM) and on-going model validation framework (back-testing, benchmarking) using reproducible research tools;
  • Participation to NetOTC margin model approval and presentation to EBA JAT;
  • Development of new business initiatives leveraging on risk expertise (margin analytics for Margin Valuation Adjustment reduction, definition of risk mitigating trades across a network);
  • Softwares: LaTeX, R
Workload PrioritizationMicrosoft ExcelStatistical ModelingSQLFinancial AnalysisMarket Risk+1

Research journals

Reviewer

Oct 2013Present · 12 yrs 6 mos · Paris

  • Journal of Applied Mathematics
  • Engeneering Journals
  • Reviewed four dozen research articles covering a range of topics (Algebra, Probability, Stochastic Calculus, PDE, Algorithmic)
Statistical ModelingCommunication

Upmc - sorbonne universities

Teacher

Jan 2013Jan 2014 · 1 yr

  • Teacher in physics and mathematics (from Licence 2 to Master 1)
  • Private tuitions (from high school to MP*)
Statistical ModelingFinancial AnalysisPublic SpeakingCommunication

Theoretical physics of condensed matter lab

PHD

Oct 2012Sep 2015 · 2 yrs 11 mos · Région de Paris , France

  • Mathematical and Computational Methods for Data Analysis in Biology and Finance
Workload PrioritizationMicrosoft ExcelStatistical ModelingSQLFinancial AnalysisMarket Risk+1

Education

Pierre and Marie Curie University

Doctor of Philosophy (Ph.D.) - Mention "Très Honorable" — Mathematical and Computational Methods for Data Analysis in Biology and Finance

Jan 2012Jan 2015

Ecole normale supérieure

Agrégation de Physique

Jan 2011Jan 2012

École Normale Supérieure Paris-Saclay

Master's degree — Theoretical Physics

Jan 2009Jan 2011

HEC Paris

MOOC - Corporate Finance — Corporate finance

Jan 2014Jan 2014

Pierre and Marie Curie University

Licence — Physique-Chimie

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